Buggy code:
@ JExercise ( description = "Tests<seq2seq4repair_space>stateandbehavior.Nim" ) @ SuppressWarnings ( "all" ) public class NimTest extends TestCase { private Nim nim ; private Nim _init_nim ( ) { } @ Override protected void setUp ( ) { } private boolean checkValidation ( final int pieces , final boolean legal , final Nim game ) { } @ JExercise ( tests = "Nim(int)" , description = "<h3>Konstruktør<//h3>Tests<seq2seq4repair_space>\r\n\t\tinitialization\r\n" ) public void testConstructor ( ) { } <START_BUG> @ JExercise ( tests = "Nim(int);void<seq2seq4repair_space>removePieces(int,int)" , description = "<h3>Fjerning<seq2seq4repair_space>av<seq2seq4repair_space>brikker<//h3>Tests<seq2seq4repair_space>\r\n\t\tthe<seq2seq4repair_space>following<seq2seq4repair_space>sequence:\r\n\t\t<ul>\r\n\t\t<li>Fjerner<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(3,<seq2seq4repair_space>1),<seq2seq4repair_space>removePieces(2,<seq2seq4repair_space>2),<seq2seq4repair_space>removePieces(1,<seq2seq4repair_space>3)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>negativt<seq2seq4repair_space>antall:<seq2seq4repair_space>removePieces(-1,<seq2seq4repair_space>1)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>for<seq2seq4repair_space>f�<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(0,<seq2seq4repair_space>1)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>for<seq2seq4repair_space>mange<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(6,<seq2seq4repair_space>1)<//li>\r\n\t\t<//ul>\r\n" ) <END_BUG> public void testRemovePieces ( ) { _transition_exprAction__removePieces_transitions0_actions0 ( nim ) ; _transition_exprAction__removePieces_transitions0_actions1 ( nim ) ; _transition_exprAction__removePieces_transitions0_actions2 ( nim ) ; _test__removePieces_transitions0_effect_state ( nim ) ; _transition_exprAction__removePieces_transitions1_actions0 ( nim ) ; _test__removePieces_transitions1_effect_state ( nim ) ; _transition_exprAction__removePieces_transitions2_actions0 ( nim ) ; _test__removePieces_transitions2_effect_state ( nim ) ; _transition_exprAction__removePieces_transitions3_actions0 ( nim ) ; _test__removePieces_transitions3_effect_state ( nim ) ; } @ JExercise ( tests = "Nim(int);void<seq2seq4repair_space>removePieces(int,int)" , description = "<h3>Avsluttet<seq2seq4repair_space>spill<//h3>Tests<seq2seq4repair_space>\r\n\t\tthe<seq2seq4repair_space>following<seq2seq4repair_space>sequence:\r\n\t\t<ul>\r\n\t\t<li>Fjerner<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(5,<seq2seq4repair_space>1)<//li>\r\n\t\t<//ul>\r\n" ) public void testGameOver ( ) { } @ JExercise ( tests = "Nim(int);void<seq2seq4repair_space>removePieces(int,int)" , description = "<h3>Gyldige<seq2seq4repair_space>trekk<//h3>Tests<seq2seq4repair_space>\r\n\t\tthe<seq2seq4repair_space>following<seq2seq4repair_space>sequence:\r\n\t\t<ul>\r\n\t\t<li>Avslutter<seq2seq4repair_space>spillet:<seq2seq4repair_space>removePieces(5,<seq2seq4repair_space>1)<//li>\r\n\t\t<//ul>\r\n" ) public void testIsValidMove ( ) { } private void _test__constructor_transitions0_effect_state ( final Nim it ) { } private void _test__constructor_transitions0_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions0_actions0 ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions0_actions1 ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions0_actions2 ( final Nim it ) { } private void _test__removePieces_transitions0_effect_state ( final Nim it ) { } private void _test__removePieces_transitions0_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions1_actions0 ( final Nim it ) { } private void _test__removePieces_transitions1_effect_state ( final Nim it ) { } private void _test__removePieces_transitions1_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions2_actions0 ( final Nim it ) { } private void _test__removePieces_transitions2_effect_state ( final Nim it ) { } private void _test__removePieces_transitions2_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__removePieces_transitions3_actions0 ( final Nim it ) { } private void _test__removePieces_transitions3_effect_state ( final Nim it ) { } private void _test__removePieces_transitions3_effect_state_objectTests0_test ( final Nim it ) { } private void _test__gameOver_transitions0_effect_state ( final Nim it ) { } private void _test__gameOver_transitions0_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__gameOver_transitions1_actions0 ( final Nim it ) { } private void _test__gameOver_transitions1_effect_state ( final Nim it ) { } private void _test__gameOver_transitions1_effect_state_objectTests0_test ( final Nim it ) { } private void _test__isValidMove_transitions0_effect_state ( final Nim it ) { } private void _test__isValidMove_transitions0_effect_state_objectTests0_test ( final Nim it ) { } private void _transition_exprAction__isValidMove_transitions1_actions0 ( final Nim it ) { } private void _test__isValidMove_transitions1_effect_state ( final Nim it ) { } private void _test__isValidMove_transitions1_effect_state_objectTests0_test ( final Nim it ) { } public static void main ( final String [ ] args ) { } }

Fix:
@ JExercise ( tests = "Nim(int);void<seq2seq4repair_space>removePieces(int,int)" , description = "<h3>Fjerning<seq2seq4repair_space>av<seq2seq4repair_space>brikker<//h3>Tests<seq2seq4repair_space>\r\n\t\tthe<seq2seq4repair_space>following<seq2seq4repair_space>sequence:\r\n\t\t<ul>\r\n\t\t<li>Fjerner<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(3,<seq2seq4repair_space>1),<seq2seq4repair_space>removePieces(2,<seq2seq4repair_space>2),<seq2seq4repair_space>removePieces(1,<seq2seq4repair_space>3)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>negativt<seq2seq4repair_space>antall:<seq2seq4repair_space>removePieces(-1,<seq2seq4repair_space>1)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>for<seq2seq4repair_space>få<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(0,<seq2seq4repair_space>1)<//li>\r\n\t\t<li>Fjerner<seq2seq4repair_space>for<seq2seq4repair_space>mange<seq2seq4repair_space>brikker:<seq2seq4repair_space>removePieces(6,<seq2seq4repair_space>1)<//li>\r\n\t\t<//ul>\r\n" )